In response to an outpouring of community opposition, followed by a lawsuit seeking cancellation of a town permit, the organizers of the MTK: Music to Know festival, slated for Aug. 13 and 14, are seeking Federal Aviation Administration and East Hampton Town permission to move the event to an unused runway at East Hampton Airport. Should that effort fail, they plan to go ahead with the concert at its original proposed site, on farmland in Amagansett.